For a population growing exponentially with a growthrate r, its population doubling time is (1) (N0x 2) (2) ln 2/r (3) λ ln 2 (4) lnr X 2 How to […]
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![Given below are growth equations where dN/dt is defined as A. rN/K B. rN C. rN[(K-N)/N] D. rN[(K-N)/K] With reference to the above equations, which one of the following statements is correct? (1) B represents exponential growth and A represents logistic growth. (2) B represents exponential growth and D represents logistic growth (3) B represents zero growth and C represents logistic growth (4) A represents exponential growth and D represents logistic growth](https://www.letstalkacademy.com/wp-content/uploads/2025/06/29-10.jpg)
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Equations Represent Exponential and Logistic Population Growth? A Comprehensive Guide
Given below are growth equations where dN/dt is defined as A. rN/K B. rN C. rN[(K-N)/N] D. rN[(K-N)/K] With reference to the above equations, which one of the following statements […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Equations Describe Exponential Population Growth? A Guide to Population Models
In the following equations (a) dN /dt = rN (b) Nt= NOert (c) dN/dt = rN (K-N/K) (d) dN/dt=rN x N/K Exponential population growth is described by (1) a and […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
What Percentage of Endemic Vascular Plants Qualifies a Place as a Biodiversity Hotspot?
The place is designated as hot spot of biodiversity, if it have percentage of endemic vascular plants more then (1) 0.5 % (2) 2 % (3) 15 % (4) 30 […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Project Female Population Size Using Net Reproductive Rate Over Four Generations
The net reproductive rate (RO) is 1.5 for a given population. If Nt, the population of females at generation t, is 500, then what will be the population of females […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
What Is the Primary Basis for Designating Biodiversity Hotspots?
Hot spots of biodiversity are primarily designated on basis (1) Endemism (2) Species diversity (3) Area covered (4) Plant species The Two Main Criteria for Biodiversity Hotspots To be recognized […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Per Capita Growth Rate in Exponential Population Growth: Understanding the Equation
In a population showing exponential growth, per capita growth rate will: (1) decrease as population size increasesdescribed by the equation (1) lnr = lna -b lnT (2) r = a-bT […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
What Are Endemic Species? Understanding Organisms Restricted to Unique Areas
When organisms are restricted to certain area and they are found nowhere else they are called (1) Cosmopolitan (2) Endemic (3) Sibling species (4) Ecotypes What Does “Endemic” Mean? An endemic […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Population Size After One Year Using Birth and Death Rates
In an experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time, ‘t’, then what will be […]
CSIR NET Life Science Previous Year Questions and Solution on Conservation Biology
Endemism: Why Islands and Mountain Ranges Are Hotspots of Unique Species
Endemism is shown by (1) Grassland (2) Island (3) plateaus (4) Mountains ranges What Is Endemism? Endemism describes the ecological state of a species being restricted to a particular location, […]
